km/common: remove hdlc_enet implementation

The hdlc implementation for mgcoge was initially developed,
but later on not used. Remove the C files, the references
in mgcoge.c and the Makefile to decrease maintenance effort.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Acked-by: Heiko Schocher <hs@denx.de>
cc: Wolfgang Denk <wd@denx.de>
cc: Detlev Zundel <dzu@denx.de>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>

2 files changed, 1 insertions, 278 deletions

diff --git a/board/keymile/mgcoge/Makefile b/board/keymile/mgcoge/Makefile
index 3308621a13..a2b9da418c 100644
--- a/board/keymile/mgcoge/Makefile
+++ b/board/keymile/mgcoge/Makefile
@@ -28,8 +28,7 @@ endif
 
 LIB	= $(obj)lib$(BOARD).o
 
-COBJS	:= $(BOARD).o ../common/common.o ../common/keymile_hdlc_enet.o \
-		mgcoge_hdlc_enet.o
+COBJS	:= $(BOARD).o ../common/common.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
diff --git a/board/keymile/mgcoge/mgcoge_hdlc_enet.c b/board/keymile/mgcoge/mgcoge_hdlc_enet.c
deleted file mode 100644
index 98f68a6608..0000000000
--- a/board/keymile/mgcoge/mgcoge_hdlc_enet.c
+++ /dev/null
@@ -1,276 +0,0 @@
-/*
- * (C) Copyright 2008
- * Gary Jennejohn, DENX Software Engineering GmbH, garyj@denx.de.
- *
- * Based in part on arch/powerpc/cpu/mpc8260/ether_scc.c.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <malloc.h>
-#include <net.h>
-
-#ifdef CONFIG_KEYMILE_HDLC_ENET
-
-#include "../common/keymile_hdlc_enet.h"
-
-char keymile_slot;	/* our slot number in the backplane */
-
-/*
- * Since, except during initialization, ethact is always HDLC ETHERNET
- * while we're in the driver, just use serial_printf() everywhere for
- * output.  This avoids possible conflicts when netconsole is being
- * used.
- */
-#define dprintf(fmt, args...)	serial_printf(fmt, ##args)
-
-static int already_inited;
-
-/*
-  * SCC Ethernet Tx and Rx buffer descriptors allocated at the
-  *  immr->udata_bd address on Dual-Port RAM
-  * Provide for Double Buffering
-  */
-typedef volatile struct CommonBufferDescriptor {
-    cbd_t txbd;			/* Tx BD */
-    cbd_t rxbd[HDLC_PKTBUFSRX];	/* Rx BD */
-} RTXBD;
-
-static RTXBD *rtx;
-
-int keymile_hdlc_enet_init(struct eth_device *, bd_t *);
-void keymile_hdlc_enet_halt(struct eth_device *);
-extern void keymile_hdlc_enet_init_bds(RTXBD *);
-extern void initCachedNumbers(int);
-
-/* Use SCC1 */
-#define CPM_CR_SCC_PAGE		CPM_CR_SCC1_PAGE
-#define CPM_CR_SCC_SBLOCK	CPM_CR_SCC1_SBLOCK
-#define CMXSCR_MASK		(CMXSCR_GR1|CMXSCR_SC1|\
-					CMXSCR_RS1CS_MSK|CMXSCR_TS1CS_MSK)
-#define CMXSCR_VALUE		(CMXSCR_RS1CS_CLK11|CMXSCR_TS1CS_CLK11)
-#define MGC_PROFF_HDLC	PROFF_SCC1
-#define MGC_SCC_HDLC	0	/* Index, not number! */
-
-int keymile_hdlc_enet_init(struct eth_device *dev, bd_t *bis)
-{
-	/* int i; */
-	uint dpr;
-	/* volatile cbd_t *bdp; */
-	volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
-	volatile cpm8260_t *cp = &(im->im_cpm);
-	volatile scc_t *sccp;
-	volatile scc_hdlc_t *hpr;
-	volatile iop8260_t *iop;
-
-	if (already_inited)
-		return 0;
-
-	hpr = (scc_hdlc_t *)(&im->im_dprambase[MGC_PROFF_HDLC]);
-	sccp = (scc_t *)(&im->im_scc[MGC_SCC_HDLC]);
-	iop = &im->im_ioport;
-
-	/*
-	 * Disable receive and transmit just in case.
-	 */
-	sccp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-
-	/*
-	 * Avoid exhausting DPRAM, which would cause a panic.
-	 */
-	if (rtx == NULL) {
-		/* dpr is an offset into dpram */
-		dpr = m8260_cpm_dpalloc(sizeof(RTXBD), 8);
-		rtx = (RTXBD *)&im->im_dprambase[dpr];
-	}
-
-	/* We need the slot number for addressing. */
-	keymile_slot = *(char *)(CONFIG_SYS_SLOT_ID_BASE +
-		CONFIG_SYS_SLOT_ID_OFF) & CONFIG_SYS_SLOT_ID_MASK;
-	/*
-	 * Be consistent with the Linux driver and set
-	 * only enetaddr[0].
-	 *
-	 * Always add 1 to the slot number so that
-	 * there are no problems with an ethaddr which
-	 * is all 0s.  This should be acceptable because
-	 * a board should never have a slot number of 255,
-	 * which is the broadcast address.  The HDLC addressing
-	 * uses only the slot number.
-	 */
-	dev->enetaddr[0] = keymile_slot + 1;
-#ifdef TEST_IT
-	dprintf("slot %d\n", keymile_slot);
-#endif
-
-	/* use pd30, pd31 pins for TXD1, RXD1 respectively */
-	iop->iop_ppard |= (0x80000000 >> 30) | (0x80000000 >> 31);
-	iop->iop_pdird |= (0x80000000 >> 30);
-	iop->iop_psord |= (0x80000000 >> 30);
-
-	/* use pc21 as CLK11 */
-	iop->iop_pparc |= (0x80000000 >> 21);
-	iop->iop_pdirc &= ~(0x80000000 >> 21);
-	iop->iop_psorc &= ~(0x80000000 >> 21);
-
-	/* use pc15 as CTS1 */
-	iop->iop_pparc |= (0x80000000 >> 15);
-	iop->iop_pdirc &= ~(0x80000000 >> 15);
-	iop->iop_psorc &= ~(0x80000000 >> 15);
-
-	/*
-	 * SI clock routing
-	 * use CLK11
-	 * this also connects SCC1 to NMSI
-	 */
-	im->im_cpmux.cmx_scr = (im->im_cpmux.cmx_scr & ~CMXSCR_MASK) |
-		CMXSCR_VALUE;
-
-	/* keymile_rxIdx = 0; */
-
-	/*
-	 * Initialize function code registers for big-endian.
-	 */
-	hpr->sh_genscc.scc_rfcr = CPMFCR_EB;
-	hpr->sh_genscc.scc_tfcr = CPMFCR_EB;
-
-	/*
-	 * Set maximum bytes per receive buffer.
-	 */
-	hpr->sh_genscc.scc_mrblr = MAX_FRAME_LENGTH;
-
-	/* Setup CRC generator values for HDLC */
-	hpr->sh_cmask = 0x0000F0B8;
-	hpr->sh_cpres = 0x0000FFFF;
-
-	/* Initialize all error counters to 0 */
-	hpr->sh_disfc = 0;
-	hpr->sh_crcec = 0;
-	hpr->sh_abtsc = 0;
-	hpr->sh_nmarc = 0;
-	hpr->sh_retrc = 0;
-
-	/* Set maximum frame length size */
-	hpr->sh_mflr = MAX_FRAME_LENGTH;
-
-	/* set to 1 for per frame processing change later if needed */
-	hpr->sh_rfthr = 1;
-
-	hpr->sh_hmask = 0xff;
-
-	hpr->sh_haddr2 = SET_HDLC_UUA(keymile_slot);
-	hpr->sh_haddr3 = hpr->sh_haddr2;
-	hpr->sh_haddr4 = hpr->sh_haddr2;
-	/* broadcast */
-	hpr->sh_haddr1 = HDLC_BCAST;
-
-	hpr->sh_genscc.scc_rbase = (unsigned int) &rtx->rxbd[0];
-	hpr->sh_genscc.scc_tbase = (unsigned int) &rtx->txbd;
-
-#if 0
-	/*
-	 * Initialize the buffer descriptors.
-	 */
-	bdp = &rtx->txbd;
-	bdp->cbd_sc = 0;
-	bdp->cbd_bufaddr = 0;
-	bdp->cbd_sc = BD_SC_WRAP;
-
-	/*
-	 *	Setup RX packet buffers, aligned correctly.
-	 *	Borrowed from net/net.c.
-	 */
-	MyRxPackets[0] = &MyPktBuf[0] + (PKTALIGN - 1);
-	MyRxPackets[0] -= (ulong)MyRxPackets[0] % PKTALIGN;
-	for (i = 1; i < HDLC_PKTBUFSRX; i++)
-		MyRxPackets[i] = MyRxPackets[0] + i * PKT_MAXBLR_SIZE;
-
-	bdp = &rtx->rxbd[0];
-	for (i = 0; i < HDLC_PKTBUFSRX; i++) {
-		bdp->cbd_sc = BD_SC_EMPTY;
-		/* Leave space at the start for INET header. */
-		bdp->cbd_bufaddr = (unsigned int)(MyRxPackets[i] +
-			INET_HDR_ALIGN);
-		bdp++;
-	}
-	bdp--;
-	bdp->cbd_sc |= BD_SC_WRAP;
-#else
-	keymile_hdlc_enet_init_bds(rtx);
-#endif
-
-	/* Let's re-initialize the channel now.	 We have to do it later
-	 * than the manual describes because we have just now finished
-	 * the BD initialization.
-	 */
-	cp->cp_cpcr = mk_cr_cmd(CPM_CR_SCC_PAGE, CPM_CR_SCC_SBLOCK,
-					0, CPM_CR_INIT_TRX) | CPM_CR_FLG;
-	while (cp->cp_cpcr & CPM_CR_FLG);
-
-	sccp->scc_gsmrl = SCC_GSMRL_MODE_HDLC;
-	/* CTSS=1 */
-	sccp->scc_gsmrh = SCC_GSMRH_CTSS;
-	/* NOF=0, RTE=1, DRT=0, BUS=1 */
-	sccp->scc_psmr = ((0x8000 >> 6) | (0x8000 >> 10));
-
-/* loopback for local testing */
-#ifdef GJTEST
-	dprintf("LOOPBACK!\n");
-	sccp->scc_gsmrl |= SCC_GSMRL_DIAG_LOOP;
-#endif
-
-	/*
-	 * Disable all interrupts and clear all pending
-	 * events.
-	 */
-	sccp->scc_sccm = 0;
-	sccp->scc_scce = 0xffff;
-
-	/*
-	 * And last, enable the transmit and receive processing.
-	 */
-	sccp->scc_gsmrl |= (SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-
-	dprintf("%s: HDLC ENET Version 0.3 on SCC%d\n", dev->name,
-		MGC_SCC_HDLC + 1);
-
-	/*
-	 * We may not get an ARP packet because ARP was already done on
-	 * a different interface, so initialize the cached values now.
-	 */
-	initCachedNumbers(1);
-
-	already_inited = 1;
-
-	return 0;
-}
-
-void keymile_hdlc_enet_halt(struct eth_device *dev)
-{
-#if 0 /* just return, but keep this for reference */
-	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
-
-	/* maybe should do a graceful stop here? */
-	immr->im_scc[MGC_SCC_HDLC].scc_gsmrl &=
-		~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-#endif
-}
-
-#endif /* CONFIG_MGCOGE_HDLC_ENET */